At length they sent the envoys, and among others B.C. 157 Cato. These went to the disputed territory and they asked that both parties should submit all their differences to them. Masinissa, who was grabbing more than his share and who had confidence in the Romans, consented. The Carthaginians hesitated, because their former experience had led them to fear that they should not receive justice. They said therefore that it was of no use to have a new dispute and a correction of the treaty made with Scipio, they only complained about transgressions of the treaty. As the envoys would not consent to arbitrate on the controversy in parts, they returned home. But they carefully observed the country; they saw how diligently it was cultivated, and what great estates it possessed. They entered the city and saw how greatly it had increased in wealth and population since its overthrow by Scipio not long before. When they returned to Rome they declared that Carthage was to them an object of apprehension rather than of jealousy, the city being so ill affected, so near them, and growing so rapidly. Cato especially said that even the liberty of Rome would never be secure until Carthage was destroyed. When the Senate learned these things it resolved upon war but waited for a pretext, and meanwhile concealed the intention. It is said that Cato, from that time, continually expressed the opinion in the Senate that Carthage must be destroyed. Scipio Nasica held the contrary opinion that Carthage ought to be spared so that the Roman discipline, which was already relaxing, might be preserved through fear of her. Y.R. 602 The democratic faction in Carthage sent the leaders of the party favoring Masinissa into banishment, to the B.C. 152 number of about forty, and confirmed it by a vote and an oath that they should never be taken back, and that the question of taking them back should never be discussed. The banished took refuge with Masinissa and urged him to declare war. He, nothing loath, sent his two sons, Gulussa and Micipsa, to Carthage to demand that those who had been expelled on his account should be taken back. When they came to the city gates the boëtharch warned them off, fearing lest the relatives of the exiles should prevail with the multitude by their tears. When Gulussa was returning Hamilcar the Samnite set upon him, killed some of his attendants, and thoroughly frightened him. Thereupon Masinissa, making this an excuse, laid siege to the town of Oroscopa, which he desired to possess contrary to the treaty. The Carthaginians with 25,000 foot and 400 city Y.R. 604 horse under Hasdrubal, their boëtharch, marched against B.C. 150 Masinissa. At their approach, Asasis and Suba, Masinissa's lieutenants, on account of some difference with his sons, deserted with 6000 horse. Encouraged by this accession, Hasdrubal moved his forces nearer to the king and in some skirmishes gained the advantage. But Masinissa by stratagem retired little by little as if in flight, until he had drawn him into a great desert surrounded by hills and crags, and destitute of provisions. Then turning about he pitched his camp in the open plain. Hasdrubal drew up among the hills as being a stronger position.